EndeavourOS is described as 'Arch-based distro that provides an Arch experience without the hassle of installing it manually for both x86_64 and ARM systems. After installation, you’re provided with a lightweight and almost barebones environment ready to be explored with your terminal' and is a popular Linux Distro in the os & utilities category. There are more than 100 alternatives to EndeavourOS for a variety of platforms, including Linux, Self-Hosted, BSD, Mac and Windows apps. The best EndeavourOS alternative is Linux Mint, which is both free and Open Source. Other great apps like EndeavourOS are Ubuntu, Debian, Arch Linux and Fedora.
It's what EndeavourOS is based off.